ops_exit_list+0xb0/0x170 net/core/net_namespace.c:169
 cleanup_net+0x4ee/0xb10 net/core/net_namespace.c:606
 process_one_work+0x9bf/0x1820 kernel/workqueue.c:2390
 worker_thread+0x669/0x1090 kernel/workqueue.c:2537
 kthread+0x2e8/0x3a0 kernel/kthread.c:376
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308
------------[ cut here ]------------
kernel BUG at mm/mmu_gather.c:139!
invalid opcode: 0000 [#1] PREEMPT SMP KASAN
CPU: 1 PID: 18289 Comm: syz-executor.4 Not tainted 6.2.0-rc6-next-20230201-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/12/2023
RIP: 0010:__tlb_remove_page_size+0x24c/0x480 mm/mmu_gather.c:139
Code: 01 00 00 8b 6d 0c e9 e1 fe ff ff e8 9e 63 c1 ff 0f 0b e8 97 63 c1 ff 4c 89 f7 48 c7 c6 40 73 58 8a 48 83 e7 fc e8 64 0b fa ff <0f> 0b e8 7d 63 c1 ff 4c 8d 6b 24 48 b8 00 00 00 00 00 fc ff df 4c
RSP: 0018:ffffc9000c6476c0 EFLAGS: 00010293
RAX: 0000000000000000 RBX: ffffc9000c647ac0 RCX: 0000000000000000
RDX: ffff88804dd78000 RSI: ffffffff81c3674c RDI: 0000000000000000
RBP: 0000000000000000 R08: 0000000000000001 R09: ffffffff8e74b7d7
R10: fffffbfff1ce96fa R11: 0000000000000000 R12: 0000000000000000
R13: 0000000000000001 R14: ffffea0001f647c0 R15: ffffc9000c647ae8
FS:  0000000000000000(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000c002f30000 CR3: 0000000061418000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 000000000000003b DR6: 00000000ffff0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 __tlb_remove_page include/asm-generic/tlb.h:472 [inline]
 zap_pte_range mm/memory.c:1416 [inline]
 zap_pmd_range mm/memory.c:1536 [inline]
 zap_pud_range mm/memory.c:1565 [inline]
 zap_p4d_range mm/memory.c:1586 [inline]
 unmap_page_range+0x1226/0x3ce0 mm/memory.c:1607
 unmap_single_vma+0x194/0x2a0 mm/memory.c:1653
 unmap_vmas+0x234/0x380 mm/memory.c:1692
 exit_mmap+0x190/0x7d0 mm/mmap.c:3036
 __mmput+0x128/0x4c0 kernel/fork.c:1209
 mmput+0x60/0x70 kernel/fork.c:1231
 exit_mm kernel/exit.c:563 [inline]
 do_exit+0x9d7/0x2b60 kernel/exit.c:856
 do_group_exit+0xd4/0x2a0 kernel/exit.c:1019
 get_signal+0x2321/0x25b0 kernel/signal.c:2859
 arch_do_signal_or_restart+0x79/0x5c0 arch/x86/kernel/signal.c:306
 exit_to_user_mode_loop kernel/entry/common.c:168 [inline]
 exit_to_user_mode_prepare+0x11f/0x240 kernel/entry/common.c:204
 __syscall_exit_to_user_mode_work kernel/entry/common.c:286 [inline]
 syscall_exit_to_user_mode+0x1d/0x50 kernel/entry/common.c:297
 do_syscall_64+0x46/0xb0 arch/x86/entry/common.c:86
 entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7fcc9168c0c9
Code: Unable to access opcode bytes at 0x7fcc9168c09f.
RSP: 002b:00007fcc923e1218 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca
RAX: fffffffffffffe00 RBX: 00007fcc917abf88 RCX: 00007fcc9168c0c9
RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00007fcc917abf88
RBP: 00007fcc917abf80 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00007fcc917abf8c
R13: 00007ffebbb80c5f R14: 00007fcc923e1300 R15: 0000000000022000
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:__tlb_remove_page_size+0x24c/0x480 mm/mmu_gather.c:139
Code: 01 00 00 8b 6d 0c e9 e1 fe ff ff e8 9e 63 c1 ff 0f 0b e8 97 63 c1 ff 4c 89 f7 48 c7 c6 40 73 58 8a 48 83 e7 fc e8 64 0b fa ff <0f> 0b e8 7d 63 c1 ff 4c 8d 6b 24 48 b8 00 00 00 00 00 fc ff df 4c
RSP: 0018:ffffc9000c6476c0 EFLAGS: 00010293
RAX: 0000000000000000 RBX: ffffc9000c647ac0 RCX: 0000000000000000
RDX: ffff88804dd78000 RSI: ffffffff81c3674c RDI: 0000000000000000
RBP: 0000000000000000 R08: 0000000000000001 R09: ffffffff8e74b7d7
R10: fffffbfff1ce96fa R11: 0000000000000000 R12: 0000000000000000
R13: 0000000000000001 R14: ffffea0001f647c0 R15: ffffc9000c647ae8
FS:  0000000000000000(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000c002f30000 CR3: 0000000061418000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 000000000000003b DR6: 00000000ffff0ff0 DR7: 0000000000000400